#define _CRT_SECURE_NO_WARNINGS 1
#include <stack>
#include <iostream>
#include <vector>
using namespace std;

bool IsPopOrder(vector<int>& pushV, vector<int>& popV) {
    stack<int> st;
    size_t i = 0, j = 0;
    for (; i < pushV.size(); ++i) {
        st.push(pushV[i]);
        while (j < popV.size() && st.top() == popV[j]) {
            j++;
            st.pop();
            if (st.empty()) break;
        }
    }
    while (j < popV.size() && st.top() == popV[j]) {
        j++;
        st.pop();
    }
    if (st.empty()) return true;
    return false;
}

int main() {
    vector<int> v1{2,1,0};
    vector<int> v2{1,2,0};
   //bool flag = IsPopOrder(v1, v2);
    stack<int> st;
  // cout << st.top() << endl;
    for (int t = 3; t > 0; t--) {
        int i = 1;
        cout << i <<" ";
        i += 2;
    }
    return 0;
}